Algorithm for Computing Excited States in Quantum Theory

Details Algorithm for Computing Excited States in Quantum Theory Algorithm for Computing Excited States in Quantum Theory

2001-08-28

arxiv.org/abs/quant-ph/0108122v1

Advanced Computing and Analysis Techniques in Physics Research: VII International Workshop; ACAT 2000, American Institute of P

Physics

Quantum Physics

3 pages, uses Latex and aipproc.cls

Scientific paper

10.1063/1.1405308

Monte Carlo techniques have been widely employed in statistical physics as well as in quantum theory in the Lagrangian formulation. However, in the conventional approach, it is extremely difficult to compute the excited states. Here we present a different algorithm: the Monte Carlo Hamiltonian method, designed to overcome the difficulties of the conventional approach. As a new example, application to the Klein-Gordon field theory is shown.

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